| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Stereophonic systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hildebrandt James G | 13 |
| #2 | Cook Brendon | 6 |
| #3 | Brendon Cook | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101513083A | Headphone improvements | |
| EP1670284A2 | Headphones fo 3D sound | |
| CA2432832A1 | Headphones for 3d sound |